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1
Dobrovolskaite, Aiste. "Urine Electrolyte Excretion in a Hypertensive Population of East Africans." TopSCHOLAR®, 2017. http://digitalcommons.wku.edu/theses/1947.
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Chronic noncommunicable diseases (NCDs) are the largest contributor to mortality rates worldwide including in low- and middle- income countries (LMICs) which already suffer from high rates of infectious disease. Among the four major NCDs that cause 38 million deaths annually, cardiovascular disease (CVD) causes 17.5 million of these annual deaths. The primary risk factor of CVD is hypertension. Kenya, a developing country in Sub-Saharan Africa, has a high rate of hypertension with low (2.6%) management rates. Prior research from our lab has identified a population of Kenyans with a high prevalence of hypertension that is not statistically correlated with typical known risk factors such as obesity, hypercholesterolemia, and behaviors of smoking and lack of exercise. This study investigated the hypothesis that high dietary salt consumption and low K+ dietary intake are contributing to the etiology of high blood pressure in this community. To test our hypothesis, two spot urine samples representing nocturnal excretions (evening and morning) and blood pressure measurements were collected from 135 participants. All samples were analyzed for Na+, K+ and Cl- content using the Smartlyte Electrolyte Analyzer. The average of each spot urine sample was extrapolated to an estimated 24-h value by the method of Mills, et al. The overall population mean urine electrolyte excretion values for Na+, K+ and Cl- were 170.6 ± 89.3 mmol/L, 82.0 ± 54.0 mmol/L, and 87.7 ± 42.1 mmol/L, respectively. While these values fall within the suggested levels for Na+ (40-220 mmol/L) and K+ (25-125 mmol/L), they are under normal excretion levels for Cl- (110-250mmol/L). Overall ion excretion was higher in females than males, although only K+ values were statistically significant (p < 0.05). Analysis of Na+ and Cl- excretion from individuals stratified by blood pressure, revealed significant differences (p < 0.05) between normotensive and hypertensive stage I individuals for both electrolytes (57.9 mmol/L vs. 88.9 mmol/L and 65.5 mmol/L vs. 96.7 mmol/L, respectively). Overall, these results suggest that our sample population consumes dietary salt within a normal range and thus, the observed prevalence of hypertension likely results from other genetic and environmental factors.
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Parmar, Maya. "Reading the double diaspora : cultural representations of Gujarati East Africans in Britain." Thesis, University of Leeds, 2013. http://etheses.whiterose.ac.uk/4615/.
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This thesis explores representations of culture amongst the prolific twice-displaced Gujarati East African diaspora in Britain. I argue that the paucity of fictional literatures written about, or by, this community demonstrate that the ‘double diaspora’ often favour forms of embodied narrative. Using the literary critical interpretive practices of close reading, I thus analyse a range of cultural ‘texts’. Through this approach of investigating both the written text alongside the nontextual embodied narrative, the thesis broadens the remit of literary studies and subsequently addresses a lacuna in scholarship on cultural representations of the ‘double diaspora’. Whilst the thesis intervenes in contemporary literary postcolonial debate, interdisciplinary connections between diverse disciplines, such as performance, trauma and diaspora studies, are established. Following my introduction, the thesis is divided into three main chapters: each considers a form of embodied cultural representation significant to the migrant who has been displaced from India to Britain, via East Africa. Beginning with Yasmin Alibhai-Brown’s The Settler’s Cookbook – one of the few examples of a written representation of twice-migrant culture – I explore culinary practices as a mode of individuated and collective identity articulation. In my third chapter, I develop my argument to read the Gujarati dances of dandiya-raas and garba, played during the Hindu festival of Navratri. Finally, before concluding, the fourth chapter moves to explore visual materials gathered from personal kinship networks. In identifying embodied narratives as significant to the double diaspora, my thesis uncovers the performance of complex and multiple selfhoods and collectivities within this community. Whilst there are instances of a surprising convergence of modern and traditional identities, there is too the emergence of an Indian national identity, which is complicated by regional Gujaratiness. In closing, I propose a Gujarati East African vernacular modernity, which demonstrates how this progressdriven diaspora simultaneously looks in two directions.
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Ferency, Donna. "Evangelization in Africa's cities particular focus on East Africa /." Theological Research Exchange Network (TREN), 1991. http://www.tren.com.
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Lubisi, Baratang Alison. "Molecular epidemiology of African swine fever in East Africa." Diss., Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-02092006-114328.
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Karamura, Deborah A. "Numerical taxonomic studies of the East African Highland bananas (Musa AAA-East Africa) in Uganda." Thesis, University of Reading, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.242092.
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Karamura, Deborah A. "Numerical taxonomic studies of the East African highland bananas, Musa AAA-East Africa, in Uganda /." Montpellier (Parc scientifique Agropolis II, 34397 Cedex 5) : INIBAP, 1999. http://catalogue.bnf.fr/ark:/12148/cb37045457f.
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Björnsdotter, Alicia. "African perceptions of China-Africa links : A quantitative content analysis of East African newspapers." Thesis, Uppsala universitet, Statsvetenskapliga institutionen, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-352313.
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Kleynhans, Evert Philippus. "Armoured warfare : the South African experience in East Africa 1940-1941." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95919.
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Thesis (MMil)--Stellenbosch University, 2014.ENGLISH ABSTRACT: Following South African entry into the Second World War on 6 September 1939, the Union Defence Force (UDF) transformed from an ageing peacetime defence force into a modern armed force capable of projecting offensive power. During the interwar period a certain state of melancholia had existed in the UDF in terms of military innovation, which resulted in muddled thinking in the UDF in terms of armoured warfare and mechanisation. The offensive potential of armoured forces was simply not understood by the South African defence planners, with the result that there was only a token armoured force in the UDF in September 1939. The South African entry into the war was the impetus for the development of a viable armoured force within the UDF, and the South African Tank Corps (SATC) was established in May 1940. Changes in both the nature and organisational structure of the South African defence establishment followed. The Italian presence in Abyssinia and Italian Somaliland was seen as a direct threat to the neighbouring British East African territories, and South Africa deployed to Kenya during June 1940, soon after the Italian declaration of war. The South African deployment to East Africa was the first deployment of the UDF in a situation of regular war since the First World War. Despite the doctrine that underpinned the South African deployment of armoured forces in East Africa, the SATC units soon learned that the accepted doctrine, borrowed from the British War Office during the interwar period, was but a mere guide to offensive employment. The story of the South African deployment to East Africa during the war is used as a lens through which to investigate the role and employment of both the UDF armoured cars and light tanks. By separately discussing the Allied offensives through Italian Somaliland and southern Abyssinia during 1940-1941, the tactical and operational employment of the South African armour during this time becomes paramount when evaluated against their successes and failures. The nature of the opposing Italian forces in East Africa, the ever-changing topography and climate of the theatre of operations, and the nature of the South African offensive operations throughout the campaign, all combined to shape the novel way in which the armoured cars and tanks of the SATC were employed throughout 1940-1941. The operational experiences that the UDF gained during the campaign in East Africa shaped the further deployments of South African armour to North Africa, Madagascar and Italy during the remainder of the war.
AFRIKAANSE OPSOMMING: Na Suid-Afrika se toetrede tot die Tweede Wêreldoorlog op 6 September 1939, het die Unieverdedigingsmag (UVM) verander vanaf ‘n verouderde vredestydse weermag na ‘n moderne mag met offensiewe projeksievermoëns. Gedurende die tussenoorlogperiode het ‘n gevoel van swaarmoedigheid in terme van militêre inovasie in die UVM geheers. Die resultaat hiervan was verwarde denke ten opsigte van pantseroorlogvoering en meganisasie. Die Suid-Afrikaanse verdedigingsbeplanners het nie die offensiewe potensiaal van pantsermagte verstaan nie. Die gevolg was dat die UVM in September 1939 slegs oor ‘n simboliese pantsermag beskik het. Die Suid-Afrikaanse toetrede tot die oorlog het die stukrag vir die ontwikkeling van ‘n lewensvatbare pantsermag binne die UVM verleen. Gevolglik is die Suid-Afrikaanse Tenkkorps (SATK) in Mei 1940 gestig. Veranderinge in beide die aard en organisatoriese struktuur van die Suid-Afrikaanse verdedigingsinstellings het gevolg. Die Italiaanse teenwoordigheid in Abessinië en Italiaans-Somaliland is as ‘n direkte bedreiging vir die aangrensende Britse Oos-Afrika gebiede gesien. In Junie 1940, kort na die Italiaanse oorlogsverklaring, is Suid-Afrikaanse magte na Kenia ontplooi. Die UVM ontplooiing na Oos-Afrika was die eerste in ‘n gereelde oorlogsituasie sedert die Eerste Wêreldoorlog. Ten spyte van die doktrine wat die Suid-Afrikaanse ontplooiing van pantsermagte na Oos-Afrika ondersteun het, het die SATK-eenhede gou geleer dat die aanvaarde doktrine, ontleen aan die Britse Ministerie van Oorlog gedurende die tussenoorlogsjare, slegs ‘n gids was tot offensiewe aanwending. Die storie van die Suid- Afrikaanse ontplooiing in Oos-Afrika gedurende die oorlog, word as ‘n lens gebruik waardeur die rol en aanwending van beide die UVM se pantserkarre en ligte tenks ondersoek word. Die geallieerde offensiewe deur Italiaans-Somaliland en suidelike Abessiniȅ gedurende 1940 – 1941 illustreer duidelik dat die taktiese en operasionele aanwending van die Suid- Afrkaanse pantsermagte gedurende hierdie tydperk van groot belang was vir die suksesse en mislukkings van die veldtog. Die aard van die opponerende magte in Oos-Afrika, die voortdurend veranderende topografie en klimaat van die operasionele teater, asook die aard van die Suid-Afrikaanse offensiewe operasies gedurende die veldtog, het gekombineer om die unieke manier waarop die pantserkarre en tenks van die UVM van 1940 tot 1941 aangewend is, te vorm. Die operasionele ervarings wat die UVM opgedoen het gedurende die Oos-Afrika Veldtog, het die verdere ontplooiings van Suid-Afrikaanse pantser na Noord- Afrika, Madagaskar en Italiȅ gedurende die res van die oorlog gevorm.
9
Ekobo, Atanga. "Conservation of the African forest elephant (Loxodonta africana) in the Lobeke, south-east Cameroon." Thesis, University of Kent, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.262645.
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Carotenuto, Matthew Paul. "Cultivating an African community the Luo Union in 20th century East Africa /." [Bloomington, Ind.] : Indiana University, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3238502.
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Thesis (Ph.D.)--Indiana University, Dept. of History, 2006."Title from dissertation home page (viewed July 12, 2007)." Source: Dissertation Abstracts International, Volume: 67-10, Section: A, page: 3939. Adviser: John H. Hanson.
11
Ayuru, R. N. "The political of regional economic cooperation in Africa : the East African Case." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.292294.
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Vidmar, Hannah Marie. "The East African Community: Questions of Sovereignty, Regionalism, and Identity." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1427828269.
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Jerven, Morten. "African economic growth reconsidered : measurement and performance in east-central Africa, 1965-1995." Thesis, London School of Economics and Political Science (University of London), 2008. http://etheses.lse.ac.uk/2992/.
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Lack of economic growth has overwhelmingly been the focus of studies of the economic history of post-colonial Africa. Ironically, this has diverted attention from explaining the process of economic growth. Explaining African economic growth as it happened, with attention to episodes of growth and changes in incentive structures, is much more demanding of the African growth evidence. There are serious validity and reliability issues with the Africa data. This stands in contrast with the widespread use of the data as functional evidence for economic analysis. The thesis sheds new light on both methodological and substantive issues through a comparative study of the national accounting methodologies in Botswana, Kenya, Tanzania and Zambia. It is found that baseline estimates and growth estimation methodologies are different across countries, and that these to an extent determine differences in measured growth, and therefore might influence conclusions in the literature. The main sources of growth evidence are compared with the national accounts data. It is shown that these different sources do not cohere. These data quality issues are serious enough to compromise research on post-colonial African economic history unless proper care is taken. The final part of the thesis analyses the growth experiences of these four countries on the basis of the national accounts data. At face value the stylised facts about averaged growth rates match the idealised typologies of African economies based on their policy and institutional frameworks. It is shown, however, that when we examine the changes in economic growth rates during the period, and the sources of those changes, the explanations from the case studies do not cohere with the orthodox narrative. While there are clear differences in the growth performance of the countries, these differences in growth rates were determined by events over which the policy makers and the institutional framework could have only limited influence. The case studies underline the importance of looking beyond the averaged aggregate growth rates, because of, rather than despite, the issues of data quality.
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Phephu, Nonkululo. "A taxonomic revision of Thuidiaceae (Bryophyta) in Africa and the East African islands." Diss., University of Pretoria, 2013. http://hdl.handle.net/2263/41007.
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A taxonomic revision of the family Thuidiaceae Schimp. for Africa and the east African Islands is
presented. Three genera, namely, Pelekium Mitt., Thuidiopsis (Broth.) M. Fleisch. and Thuidium
Bruch & Schimp., and 16 species are accepted and revised for the region. The nomenclature, keys
to genera and species, descriptions, illustrations and distribution maps are included.
Thuidiaceae is one of over 40 families that belong to the Hypnales which is known to
contain the most diversity among pleurocarpous mosses. Members of the Thuidiaceae are
characterised by gametophytes with attractive, regularly 2- or 3-pinnate branching, presence of
paraphyllia on surfaces of stems and branches, dimorphic stem and branch leaves, longitudinally
plicate leaves with a single costa, papillose leaf cells, and a hypnoid peristome. Abietinella Müll. Hal., Haplocladium (Müll. Hal.) Müll. Hal., Hylocomiopsis Cardot and
Rauiella Reimers are excluded from African Thuidiaceae. Thuidium involvens var. thomeanum
Broth. is raised to species status under Pelekium, as Pelekium thomeanum (Broth.) Phephu.
Thuidium pseudoinvolvens (Müll. Hal.) A. Jaeger is also transferred to Pelekium and the new
combination Pelekium pseudoinvolvens (Müll. Hal.) Phephu is proposed.Dissertation (MSc)--University of Pretoria, 2013.
gm2014
Plant Science
unrestricted
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Holland, Killian. "Pastoralism on the horns of a dilemma : is there a viable future for the Maasai?" Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65980.
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Garland, A. C. "The use of Meteostat in the analysis of African armyworm outbreaks in East Africa." Thesis, University of Bristol, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.356121.
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Dawe, Jennifer Ann. "A history of cotton-growing in East and Central Africa : British demand, African supply." Thesis, University of Edinburgh, 1993. http://hdl.handle.net/1842/19673.
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Based on extensive UK and African archival research and a wide survey of secondary sources, this thesis examines various aspects of African cotton production from prehistoric to modern times. Its main emphasis is on the interaction of British demand and African supply during the twentieth century colonial period. The British Cotton Growing Association (BCGA), Empire Cotton Growing Corporation (ECGC), Malawi and Tanzania are studied in detail to observe the means by which the BCGA and ECGC articulated British needs and nurtured the African cotton industry and the extent to which East and Central African cotton-growing was directed by external wants, supported by outside input and met local desires. Also examined are the dynamics of competition, control and occasional cooperation between European planters, African smallholders, metropolitan government, various levels of local government administration, large-scale merchants, small traders, Departments of Agriculture and the Colonial Office (CO). Background data is provided in technical appendices and over fifty statistical tables, graphs and maps. Starting with a discussion on the origins of cultivated cottons, the first chapter describes the rise of the Lancashire cotton industry and its search for a regular, secure supply of raw cotton. The second chapter narrates the history of the BCGA, inaugurated in 1902 to meet British cotton requirements, and assesses its success, its inherent dichotomy as 'semi-philanthropic, semi-commercial' and its relationships with the CO, overseas governments and trading firms. It also introduces the ECGC, chartered in 1921, the main subject of the third chapter which spotlights the varied areas of ECGC activity and its role in agricultural research. Chapter 4 bridges the metropolitan-colonial divide with an examination of economics, agriculture and cotton in British territories in Africa, with specific sections on Zimbabwe, Zambia, Kenya and Uganda. Chapters 5 and 6 present overviews of cotton-growing in Malawi and Tanzania, touching on regional variations, constraints on expansion, means of encouragement, ecological effect and economic and production results.
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Berhe, Seife Michael. "The geologic and tectonic evolution of the Pan-African/Mozambique Belt in East Africa." Thesis, Open University, 1988. http://oro.open.ac.uk/57038/.
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The presence of ophiolite complexes in NE and E Africa has been documented using Landsat, field and geochemical studies. This has led to the recognition of five ophiolite belts. These ophiolite belts represent sutures marking the position of island arcs and could be traced to Saudi Arabia on a pre-Red Sea drift reconstruction. Most of the ophiolites are dismembered, their mode of occurrence varies widely resulting in different structural relationships. The Yubdo complex in Western Ethiopia is formed of harzburgite which grades into dunites and pyroxenitic units, a cumulate sequence of ultramafic and gabbroic rocks and sheeted dykes. The Baragoi complex in Kenya is formed of tectonised ultramafics with dunite and chromite pods, a cumulate sequence of ultramatic and gabbroic units and a dyke unit. Trace element data of the Baragoi complex shows a transitional MORB to IAT affinity, and the presence of boninites suggest a supra- subduction setting, while data from the Adola- Moyale belt (S Ethiopia- NE Kenya) indicate an island-arc and MORB geochemistry, which developed in a back-arc setting. The chromites of Baragoi and Moyale have high Cr2O3 which follow an ophiolitic trend. Major and trace element data for granitoids from W Ethiopia, S Ethiopia- NE Kenya and central Kenya indicate three geochemically distinct granitoid groups: volcanic are granitoids, crustal melt granitoids and within-plate granitoids. Calc-alkaline rocks predominate in W Ethiopia, whereas the proportion of crustal melts appear to increase going further south in S Ethiopia/ NE Kenya and central Kenya. Diorites form about 10 percent of Precambrian outcrop in NE Sudan, while further south diorites are almost insignificant. Only in NE Sudan, W Ethiopia and Saudi Arabia do diorites feature prominently. However the lack of extensive cats-alkaline volcanic rocks, could simply reflect relatively narrow oceans and insufficient subduction of oceanic crust to produce large quantities of calc-alkaline melts, while the increase in the proportion of crustal melt granitoids in the southern part of the Mozambique belt indicates crustal thickening due to continent-continent collision. This study shows that the major lineaments identified in the Horn of Africa trend 010 ± 100, 055-065° and 145-165°. The 010 ± 10° and 145-165° trending lineaments form conjugate sets, while a later deformation episode reactivated 145-165° (NW-SE) trending lineaments and caused 055-0650 (NE-SW) lineaments. Two deformation mechanisms most likely controlled the growth of the major fault zones. Structural and metamorphic evidence suggests that crustal shortening was severe in S Sudan, Kenya and SE Ethiopia as compared to Saudi Arabia, NE Sudan and N and W Ethiopia due to oblique collision from the southeast causing stacking of crustal blocks along NW trending faults. Regional geologic, tectonic and geochemical studies suggest rifting c. 1200 Ma which subsequently led to the development of intraoceanic arcs and associated marginal basins in the north and narrow basins within the sialic basement gneisses further south in Kenya and Tanzania. This was followed by continent- continent collision which led to accretion of island arcs by mild collision from the northeast in Saudi Arabia and NE Sudan and severe crustal shortening In S Sudan, Kenya and SE Ethiopia as compared to Saudi Arabia, NE Sudan and N and W Ethiopia due to oblique collision from the southeast.
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Kanter, Marcelo de Mello. "Política externa e integração na África Oriental : um estudo sobre Uganda, Tanzânia e Quênia." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/132967.
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Este trabalho procura responder por que as políticas externas de Uganda, Tanzânia e Quênia convergiram ao final da década de 1990 culminando na refundação da Comunidade da África Oriental (CAO). Leva-se em consideração o quadro de análise em dois níveis: a política interna e o sistema internacional. O trabalho guia-se por duas hipóteses. A primeira é que dificuldades econômicas domésticas, experimentadas na década de 1990 — marcada pela adoção do Consenso de Washington —, deram impulso a forças políticas que favoreciam parcerias regionais. Já a segunda é que a CAO seria um fator conducente à constituição de um paradigma relacional no leste africano, permitindo a resolução pacífica de controvérsias entre os Estados membros e a coordenação de ações militares em seu entorno. Para averiguar as hipóteses, analisam-se os processos políticos internos dos três países em busca das causas da aproximação, isto é, mudanças de governo, governante e de arcabouço institucional. Traça-se também a evolução da políticas externas de Quênia, Tanzânia e Uganda, relacionando-as com o panorama internacional da época e com as dinâmicas políticas domésticas. Ademais, exploram-se os limites da convergência política através do estudo de alguns casos específicos: projetos de integração infraestrutural na CAO, a guerra civil da Somália e as guerras na República Democrática do Congo. Verifica-se que na Tanzânia a transição presidencial foi determinante para a mudança na política externa. Em Uganda, a superação da instabilidade interna (insurgências) permitiu o maior engajamento regional. Em contraste, a política externa queniana mostrou-se mais reativa ao contexto externo: a perda de valor estratégico do país para os Estados Unidos com o fim da Guerra Fria obrigou-o a buscar aliados regionais para evitar isolamento. Já os estudos de caso mostram que a convergência política encontra muitos desafios, pois, embora haja uma relação especial entre Dodoma, Kampala e Nairóbi, eles disputam entre si para tornar-se polo regional de poder. Ainda assim, mesmo quando estão indiretamente em guerra um contra o outro, como na República Democrática do Congo, a integração consegue avançar paulatinamente.This work aims to answer why did the foreign policies of Uganda, Tanzania and Kenya converge by the end of the 1990s culminating in the re-foundation of the East African Community (EAC). It takes into consideration the two-level analytical framework: internal politics and the international system. Two hypothesis guide the investigation. The first is that domestic economic difficulties, experience in the 1990s — marked by the adoption of the Washington Consensus —, have given impulse to political forces favorable to regional partnerships. The second considers that the EAC is a factor conducive to the constitution of a relational paradigm in East Africa, allowing for the peaceful resolution of controversies among member-states and military action coordination in their surroundings. To test the hypotheses, the internal political processes of the three countries are analyzed in search for the causes of the convergence, that is, changes in government, ruler and institutional framework. The evolution of Kenya's, Tanzania's and Uganda's foreign policies is traced, relating them with the international scene of the period and with domestic political dynamics. Furthermore, the limits of the political convergence are explored through the study of some specific cases: infrastructure integration projects in EAC, Somalia's civil war and the wars in the Democratic Republic of Congo. The work finds that in Tanzania the presidential transition was determinative to the foreign policy shift. In Uganda, the overcoming of internal instability (insurgencies) allowed a greater regional engagement. Conversely, the Kenyan foreign policy has shown to be more reactive to the external context: the country's loss of strategic value to the United States with the end of the Cold War pushed it to seek regional allies to avoid isolation. The case studies have shown that the political convergence meets many challenges, because, although there is a special relationship between Dodoma, Kampala and Nairobi, they dispute to become a regional pole of power. Nevertheless, even when they are indirectly at war with one another, as in the Democratic Republic of Congo, the integration manages to advance step by step.
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Ocita, James. "Diasporic imaginaries : memory and negotiation of belonging in East African and South African Indian narratives." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80354.
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Thesis (PhD)--Stellenbosch University, 2013.ENGLISH ABSTRACT: This dissertation explores selected Indian narratives that emerge in South Africa and East Africa between 1960 and 2010, focusing on representations of migrations from the late 19th century, with the entrenchment of mercantile capitalism, to the early 21st century entry of immigrants into the metropolises of Europe, the US and Canada as part of the post-1960s upsurge in global migrations. The (post-)colonial and imperial sites that these narratives straddle re-echo Vijay Mishra‘s reading of Indian diasporic narratives as two autonomous archives designated by the terms, "old" and "new" diasporas. The study underscores the role of memory both in quests for legitimation and in making sense of Indian marginality in diasporic sites across the continent and in the global north, drawing together South Asia, Africa and the global north as continuous fields of analysis. Categorising the narratives from the two locations in their order of emergence, I explore how Ansuyah R. Singh‘s Behold the Earth Mourns (1960) and Bahadur Tejani‘s Day After Tomorrow (1971), as the first novels in English to be published by a South African and an East African writer of Indian descent, respectively, grapple with questions of citizenship and legitimation. I categorise subsequent narratives from South Africa into those that emerge during apartheid, namely, Ahmed Essop‘s The Hajji and Other Stories (1978), Agnes Sam‘s Jesus is Indian and Other Stories (1989) and K. Goonam‘s Coolie Doctor: An Autobiography by Dr Goonam (1991); and in the post-apartheid period, including here Imraan Coovadia‘s The Wedding (2001) and Aziz Hassim‘s The Lotus People (2002) and Ronnie Govender‘s Song of the Atman (2006). I explore how narratives under the former category represent tensions between apartheid state – that aimed to reveal and entrench internal divisions within its borders as part of its technology of rule – and the resultant anti-apartheid nationalism that coheres around a unifying ―black‖ identity, drawing attention to how the texts complicate both apartheid and anti-apartheid strategies by simultaneously suggesting and bridging differences or divisions. Post-apartheid narratives, in contrast to the homogenisation of "blackness", celebrate ethnic self-assertion, foregrounding cultural authentication in response to the post-apartheid "rainbow-nation" project. Similarly, I explore subsequent East African narratives under two categories. In the first category I include Peter Nazareth‘s In a Brown Mantle (1972) and M.G. Vassanji‘s The Gunny Sack (1989) as two novels that imagine Asians‘ colonial experience and their entry into the post-independence dispensation, focusing on how this transition complicates notions of home and national belonging. In the second category, I explore Jameela Siddiqi‘s The Feast of the Nine Virgins (1995), Yasmin Alibhai-Brown‘s No Place Like Home (1996) and Shailja Patel‘s Migritude (2010) as post-1990 narratives that grapple with political backlashes that engender migrations and relocations of Asian subjects from East Africa to imperial metropolises. As part of the recognition of the totalising and oppressive capacities of culture, the three authors, writing from both within and without Indianness, invite the diaspora to take stock of its role in the fermentation of political backlashes against its presence in East Africa.
AFRIKAANSE OPSOMMING: Hierdie studie fokus op geselekteerde narratiewe deur skrywers van Indiër-oorsprong wat tussen 1960 en 2010 in Suid-Afrika en Oos-Afrika ontstaan om uitbeeldings van migrerings en verskuiwings vanaf die einde van die 19e eeu, ná die vestiging van handelskapitalisme, immigrasie in die vroeë 21e eeu na die groot stede van Europa, die VS en Kanada, te ondersoek, met die oog op navorsing na die toename in globale migrasies. Die (post-)koloniale en imperial liggings wat in hierdie narratiewe oorvleuel, beam Vijay Mishra se lesing van diasporiese Indiese narratiewe as twee outonome argiewe wat deur die terme "ou" en "nuwe" diasporas aangedui word. Hierdie proefskrif bestudeer die manier waarop herinneringe benut word, nie alleen in die soeke na legitimisering en burgerskap nie, maar ook om tot 'n beter begrip te kom van die omstandighede wat Asiërs na die imperiale wêreldstede loods. Ek kategoriseer die twee narratiewe volgens die twee lokale en in die volgorde waarin hulle verskyn het en bestudeer Ansuyah R Singh se Behold the Earth Mourns (1960) en Bahadur Tejani se Day After Tomorrow (1971) as die eerste roman wat deur 'n Suid-Afrikaanse en 'n Oos-Afrikaanse skrywe van Indiese herkoms in Engels gepubliseer is, en die wyse waarop hulle onderskeidelik die kwessies van burgerskap en legitimisasie benader. In daaropvolgende verhale van Suid-Afrika, onderskei ek tussen narratiewe at hul onstaan in die apartheidsjare gehad het, naamlik The Hajji and Other Stories deur Ahmed Essop, Jesus is Indian and Other Stories (1989) deur Agnes Sam en Coolie Doctor: An Autobiography by Dr. Goonam deur K. Goonam; uit die post-apartheid era kom The Wedding (2001) deur Imraan Covadia en The Lotus People (2002) deur Aziz Hassim, asook Song of the Atman (2006) deur Ronnie Govender. Ek kyk hoe die verhale in die eerste kategorie spanning beskryf tussen die apartheidstaat — en die gevolglike anti-apartheidnasionalisme in 'n eenheidskeppende "swart" identiteit — om die aandag te vestig op die wyse waarop die tekste sowel apartheid- as anti-apartheid strategieë kompliseer deur tegelykertyd versoeningsmoontlikhede en verdeelheid uit te beeld. Post-apartheid verhale, daarenteen, loof eerder etniese selfbemagtiging met die klem op kulturele outentisiteit in reaksie op die post-apartheid bevordering van 'n "reënboognasie", as om 'n homogene "swartheid" voor te staan. Op dieselfde manier bestudeer ek die daaropvolgende Oos-Afrikaanse verhale onder twee kategorieë. In die eerste kategorie sluit ek In an Brown Mantle (1972) deur Peter Nazareth en The Gunny Sack (1989) deur M.G. Vassanjiin, as twee romans wat Asiërs se koloniale geskiedenis en hul toetrede tot die post-onafhanklikheid bedeling uitbeeld (verbeeld) (imagine), met die klem op die wyse waarop hierdie oorgang begrippe van samehorigheid kompliseer. In die tweede kategorie kyk ek na The Feast of the Nine Virgins (1995) deur Jameela Siddiqi, No Place Like Home (1996) deur Yasmin Alibhai en Migritude (2010) deur Shaila Patel as voorbeelde van post-1990 verhale wat probleme met die politieke teenreaksies en verskuiwings van Asiër-onderdane vanuit Oos-Afrika na wêreldstede aanspreek. As deel van die erkenning van die totaliserende en onderdrukkende kapasiteit van kultuur, vra die drie skrywers – as Indiërs en as wêreldburgers – die diaspora om sy rol in die opstook van politieke teenreaksie teen sy teenwoordigheid in Oos-Afrika onder oënskou te neem.
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Berkström, Charlotte. "Ecological connectivity in East African seascapes." Doctoral thesis, Stockholms universitet, Systemekologiska institutionen, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75194.
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Coral reefs, seagrass beds and mangroves constitute a complex mosaic of habitats referred to as the tropical seascape. Great gaps exist in the knowledge of how these systems are interconnected. This thesis sets out to examine ecological connectivity, i.e. the connectedness of ecological processes across multiple scales, in Zanzibar and Mafia Island, Tanzania. Paper I examined the current knowledge of interlinkages and their effect on seascape functioning, revealing that there are surprisingly few studies on the influences of cross-habitat interactions and food-web ecology. Furthermore, 50% of all fish species use more than one habitat and 18% of all coral reef fish species use mangrove or seagrass beds as juvenile habitat in Zanzibar. Paper II examined the seascape of Menai Bay, Zanzibar using a landscape ecology approach and studied the relationship between fish and landscape variables. The amount of seagrass within 750m of a coral reef site was correlated with increased invertebrate feeder/piscivore fish abundance, especially Lethrinidae and Lutjanidae, which are known to perform ontogenetic and feeding migrations. Within patch seagrass cover was correlated with nursery species abundance. Paper III focused on a seagrass-dominated seascape in Chwaka Bay, Zanzibar and showed that small-scale habitat complexity (shoot height and density) as well as large-scale variables such as distance to coral reefs affected abundance and distribution of a common seagrass parrotfish Leptoscarus vaigiensis. Paper IV studied the connectivity and functional role of two snappers (Lutjanus fulviflamma and L. ehrenbergii) using stable isotopes (δ15N and δ13C) and found that connectivity between habitats was maintained by ontogenetic and foraging migrations by these species. The thesis concludes that ecological connectivity and multi-habitat usage by fish is a general and important characteristic in the Western Indian Ocean and should be considered in management planning.At the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Submitted. Paper 4: Submitted.
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Callaby, Rebecca. "Coinfections in East African Shorthorn Zebu." Thesis, University of Edinburgh, 2015. http://hdl.handle.net/1842/14167.
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The Infectious Diseases of East African Livestock (IDEAL) project followed 548 East African Shorthorn Zebu (EASZ) calves in Western Kenya for the first year of life and monitored the sequelae of infections by multiple parasites. More than 50 different parasites were identified during this time. The IDEAL project also gathered environmental information about the farm and collected phenotypic data on the calf and its dam. Calves were also genotyped for 55,777 single nucleotide polymorphisms (SNPs). Recent research has looked at coinfection in rodents and humans but not in indigenous cattle. Here I investigate the evidence for coinfection in EASZ and study the associations occurring between coinfecting parasites. In addition, I examine the genetic and phenotypic factors which predispose an individual to infection with multiple parasites. Using information gathered by the IDEAL project, my thesis consists of the following chapters. An investigation of the nature of concurrent associations and of lagged effects between different parasites. Using the parasites Theileria spp., Coccidia spp., Strongyloides spp., strongyles and Calicophoron spp. I show that the patterns of association between different parasites are complex: there is evidence for both positive and negative associations. For example, infection with Strongyloides spp. increased the risk of strongyle infection. Conversely, in other cases, being infected with one parasite decreased the calf’s risk of infection with another parasite: for example, infection with Strongyloides spp. decreased the risk of infection with Calicophoron spp. A study of the relationship between different respiratory viruses and their effect upon the host. I confirm that positive associations exist between Infectious Bovine Rhinotracheitis (IBR), Bovine Viral Diarrhoea Virus (BVDV) and Bovine Parainfluenza Virus Type 3 (PIV3) in a previously unstudied setting; being seropositive for any one of these three viruses means that an individual is more likely to be seropositive for the other two viruses than expected by chance. Being seropositive for IBR, BVDV or PIV3 did not affect the average daily weight gain of the calf, nor did PIV3 and BVDV serostatus have an effect on the calf ever experiencing a clinical episode. However, IBR seropositive calves were less likely to experience a clinical episode of some form, suggestive of some protective aspect of IBR. An examination of the sources of variation in faecal strongyle egg counts (EPG), and their association with body weight, host genetics and a suite of haematological measures. Using estimates of relatedness derived from the SNP data, I established that strongyle EPG has a genetic basis in EASZ, with a heritability of 23.9% (S.E. = 11.8%) and showed a consistently strong negative association between strongyle infection and the haematological parameters white blood cell count, red blood cell count, total serum protein and absolute eosinophil count. Furthermore, calf body weight at 1 week old was a significant predictor of strongyle EPG at 16-51 weeks, with smaller calves being predisposed to a higher strongyle EPG later in life. A genome-wide association study (GWAS) to investigate if there is a genetic predisposition to East Coast Fever (ECF) death and a genetic basis to the packed cell volume at the time of seroconversion to Theileria parva (PCVTP). I found no robust evidence for a relationship between genotyped single nucleotide polymorphisms (SNPs) and ECF death or PCVTP. The effect of sample size upon GWAS and significance thresholds was investigated further through simulations. I conclude that the small number of cases influences the probability of association between a SNP and the phenotypic trait. Smaller case numbers produce more artifactual associations with SNPs, an effect not fully compensated for by the standard Bonferroni correction, suggesting that an empirical significance threshold should be used to directly account for sample size. The results of this thesis provide an understanding of the associations occurring between different parasites, and of their causes and consequences. I discuss the results in the context of their implications for disease control strategies, suggesting the benefits of an integrated approach to control worm and T. parva alongside the possible genetic selection for parasite resistance and supplementary feeding of lightweight individuals to improve the health of EASZ.
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Leinweber, Volker Thor. "Geophysical study of the conjugate East African and East Antarctic margins." Brest, 2011. http://www.theses.fr/2011BRES2017.
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The study deals with the relative movements between Africa and Antarctica in Middle Jurassic to Lower Cretaceous times using new data from four campaigns (2006-2010). Aeromagnetic measurements in the 5W Enderby Basin clearly image the continent-ocean-transition east of the Gunnerus Ridge. Spreading anomalies are absent, pointing to a formation of the oceanic crust during Cretaceous Normal superchron times. Velocity and density modelling of two wide-angle seismic profiles across the Central Mozambique continental margin reveal continental crust, thinning seawards by 50% over a distance of ~130 km. Farther south, oceanic crust is overlain by sediments with high P-wave velocities around 4. 8 km/s. An extensive lower crustal high-velocity-body has been found in both profiles. Identifications of magnetic spreading anomalies reveal that the COT is located closer to the coast than supposed so far. M41 n is interpreted as oldest existing spreading anomaly. New magnetic and gravity data across the Mozambique Ridge and the Northern Natal Valley and their similarity to potential field data on the Mozambique Coastal Plains point to a mainly oceanic nature from the plains south and two southward jumps of the spreading centre. The Astrid Ridge is subdivided by the Astrid Fracture Zone into a northern and a southern part with different magnetic signatures and is interpreted to consist of oceanic crust. The regional results were implemented into a new kinematic model between Africa and Antarctica, postulating a tight continental Gondwana fit, a two-stage breakup and a southward movement of the Grunehogna Craton east of the Mozambique Ridge during the second stage of breakupL’étude traite des mouvements relatifs de l’Afrique et de l'Antarctique, du Jurassique moyen jusqu’à la fin du Crétacé inférieur, en utilisant les données de quatre campagnes (2006-2010). Des mesures aéromagnétiques dans le bassin Enderby Sud-Ouest montrent la COT à l’est de la dorsale de Gunnerus. Il n’y a pas d’anomalie évidente dans les données, ce qui indique une formation de croûte océanique durant le superchron normal du Crétacé. La modélisation de deux profils sismiques grand-angles à travers la marge continentale du Mozambique central révèle une croûte continentale qui s’amincit ~50% sur une distance de ~130 km vers le large. Plus au sud, de la croûte océanique se trouve sous des sédiments à hautes vitesses d’ondes P autour de 4,8 km/s. Dans la croûte inférieure se retrouve un vaste corps de grande vitesse d’ondes. Des identifications des anomalies (M41n étant interprétée comme la plus vieille) révèlent que la COT est plus proche de la côte qu’on ne le croyait. De nouvelles données magnétiques et gravimétriques à la ride du Mozambique et au bassin nord du Natal et leur similitude avec les données des plaines de la côte du Mozambique indiquent une nature de croûte océanique majoritaire des plaines vers le sud ainsi que deux sauts du centre d’écartement vers le Sud. La ride d’Astrid est scindée en deux parties magnétiquement différentes, interprétées en croûte océanique. Les résultats régionaux ont été implémentés dans un nouveau modèle cinématique, qui postule un ajustement étroit des continents du Gondwana, une fracturation diphasée et un mouvement du Craton Grunehogna vers le sud à l’est de la ride du Mozambique pendant la deuxième phase de la fracturation
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Bholla, Zohaib Salim. "Financial integration in East Africa: evidence from interest rate pass-through analysis." Thesis, Rhodes University, 2011. http://hdl.handle.net/10962/d1006131.
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The successful launch of the European Monetary Union (EMU) raised an already ever growing interest in the economics of monetary integration and the formation of monetary unions around the world. Following the EMU experience, countries have considered forming a monetary union amongst themselves. The East African Community (EAC), comprising the three original member countries Kenya, Tanzania and Uganda and now including Burundi and Rwanda, is an example of such a group of countries that seek to form a monetary union. This study aims to identify the current level of financial integration amongst the East African countries. In order to do so the study examines whether the pass-through of monetary policy in the five countries has become similar over time. This is to provide an indication of the extent to which the nominal convergence criteria amongst the member countries have been met. The results of the study provide an indication of whether the formation of a monetary union in East Africa is possible. The empirical analysis used in this study included stationarity tests, four tests of co integration and an asymmetric error correction model to investigate whether the pass-through of monetary policy transmission in the five countries has become more similar over the ten year sample period from 1999 to 2008. The analysis uses three interest rates and 6-year rolling windows to identify the extent of macroeconomic convergence that prevails within the EAC, and consequently whether the formation of a monetary union is possible. The results suggest that the magnitude of the convergence amongst the countries remain low and there are significant rigidities in the deposit and lending rates over time, however the passthrough has improved with respect to the lending rate but not the deposit rate. The overall conclusion of the study suggests that an EAC wide monetary union is currently not possible based on the evidence provided from the pass-through analysis.
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Kimemia, Peter Njau. "The new initiative of the East African Cooperation : opportunities, challenges and prospects." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1004743.
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The landmark inauguration of the East African Cooperation (EAC) on 14 March 1996 brought to the fore some key issues regarding regional economic integration in East Africa, particularly since it signalled the second attempt by Kenya, Uganda and Tanzania to form a regional economic bloc. The EAC's predecessor, the East African Community, had collapsed in 1977 in acrimonious circumstances. Prominent among the issues that led to the collapse of the East African Community was the perception of unequal gains from the integration scheme, with Uganda and Tanzania considering that disproportionate benefits were accruing to Kenya at their expense. With the new initiative, the question emerges as to whether the problems that caused the collapse of the Community will not beset the EAC and subject it to a similar fate. In an attempt to address this question, this study considers some of the theoretical issues relating to regional economic integration among countries at different levels of development, and attempts to provide an analysis of the new initiative of the EAC in the light of this theory and the history of the East African Community. The study also critically examines the objectives of the EAC and the integration strategy adopted by the three countries, and offers suggestions on the way forward. Among the arguments made in this thesis are that, contrary to the suggestions of orthodox static analysis, if the dynamic effects of integration are considered, then there may be important gains which may accrue to integrating states in the developing country context. It is also argued that different levels of development among integrating states need not necessarily be an impediment to economic integration. The study finds that, in spite of the enormous challenges facing the EAC, member states may be better off within the integration scheme than if they acted as individual units in a rapidly globalizing international system.
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Sarone, Ole Sena 1949. "Pastoralists and education : school participation and social change among the Maasai." Thesis, McGill University, 1986. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=72843.
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Sanders, Ethan Randall. "The African Association and the growth and movement of political thought in mid-twentieth century East Africa." Thesis, University of Cambridge, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.607946.
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Asiimwe, Edgar Napoleon. "E-waste Management in East African Community." Thesis, Örebro universitet, Handelshögskolan vid Örebro universitet, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:oru:diva-12585.
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Gillson, Lindsey. "Vegetation change in East African elephant habitat." Thesis, University of Oxford, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396163.
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Gurumo, Shabani Rajab. "Assessing the prospects of the New East African Community." Thesis, Stellenbosch : Stellenbosch University, 2005. http://hdl.handle.net/10019.1/50280.
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Thesis (MBA)--Stellenbosch University, 2005.ENGLISH ABSTRACT: The three East African countries of Kenya, Tanzania and Uganda have a long history of economic co-operation, which at one time amounted close to political integration. Their present co-operation arrangement is known as the East African Community (the new East African Community), but is one that remains susceptible to failure if conscious and purposeful steps are not timely adopted to facilitate their integration. A number of reasons have been attributed to the failure and eventual demise of the old East African Community. These reasons include, the unequal distribution of gains and costs amongst the partner states, perceptions and impressions on reaching conclusions about the distribution of those gains and costs, the heavy internal and external debt burdens that the three countries experienced in different degrees, differing political ideologies amongst the political leaderships of the three countries, unwillingness to cede government authority to the Community, and the absence of sufficient possibilities for cost reduction shifts in the industrial sector amongst the three countries. The above meant that there was little chance for potential economies of scale. While the recognition of the value of past experiences forms an important aspect of a future strategy for the Community, prevailing and anticipated circumstances are more relevant. This study project seeks to establish the chances for the success or failure of the new East African Community by means of an analysis of the historical passage of East African co-operation, in particular the former official arrangement of 1967-1977 and scrutiny of the system underlying the present arrangement. The differences and similarities of the two systems are then extrapolated and the likely effects that those differences and similarities will impart upon the new East African Community are investigated. Finally, the ways and means identified as a possible easing of the shortcomings are advanced as recommendations. One outstanding development in the existence of the new East African Community so far has been the pursuance to establish an East African Federation in the shortest possible timeframe. In the new East African Community's formative treaty the objective of achieving a political federation is declared to be the ultimate objective. It would appear that the concept of "shortest possible time" was partly interpreted by those mandated to explore the possibilities as relating to the timeframe during which the existing political leadership would still be functioning. The study has, however, concluded that the fast tracking of the political federation is one of the possible serious threats to the sustainability and longevity of the new East African Community. Likewise, membership of other regional integration arrangements by the partner states of the Community - without a concrete formally agreed common mechanism to deal with the ensuing conflicts of interest - is considered to be a weakness. The study recommends a number of preconditions necessary for the smooth transition to a political federation that would not compromise the positive prospects of the Community.
AFRIKAANSE OPSOMMING: Die drie Oos-Afrikalande Kenia, Tanzanië en Uganda het 'n lang geskiedenis van ekonomiese samewerking wat op 'n stadium feitlik op politieke integrasie neergekom het. Hulle huidige integrasiereëling staan as die Oos- Afrikagemeenskap (die Gemeenskap) bekend, maar dit bly vatbaar vir mislukking indien bewuste en doelgerigte stappe nie betyds gedoen word om hulle integrasie te bevorder nie. 'n Aantal redes is aangevoer vir die mislukking en uiteindelike verval van die ou Oos-Afrikagemeenskap. Hierdie redes sluit onder andere in die oneweredige verspreiding van winste en kostes tussen die vennootskapslande, persepsies en indrukke oor besluite rakende die verdeling van genoemde winste en kostes, die kwaai binne- en buitelandse skuldlaste wat die drie lande in wisselende mate ervaar het, verskillende politieke ideologieë tussen die politieke leierskappe van die drie lande, 'n onwilligheid om regeringsgesag na die Gemeenskap oor te dra en die afwesigheid van genoegsame moontlikhede vir kosteverminderingstappe in d ie nywerheidsektor tussen die drie lande. Die bovermelde het beteken dat daar min geleentheid vir potensiële groot ekonomieë was. Alhoewel die erkenning van die waarde van ervarings uit die verlede 'n belangrike aspek van 'n toekomstige strategie vir die Gemeenskap uitmaak, is heersende en verwagte omstandighede meer relevant. Hierdie studieprojek poog om by wyse van 'n analise van die historiese verloop van samewerking in Oos- Afrika en in die besonder van die vorige amptelike reëling tussen 1967 tot 1977 en 'n ondersoek van die stelsel wat die huidige reëling onderlê, vas te stel wat die kanse is op die sukses of mislukking van die nuwe Oos-Afrikagemeenskap. Die verskille en ooreenkomste tussen die twee stelsels word dan geëkstrapoleer en die verwagte gevolge wat daardie verskille en ooreenkomste op die nuwe Oos-Afrikagemeenskap gaan uitoefen, word ondersoek. Laastens word die middele wat geïdentifiseer is as 'n moontlike verligting van die tekortkominge, as aanbevelings voorgehou. Een van die opvallende ontwikkelings in die nuwe Oos-Afrikagemeenskap is die nastrewing van die doel om 'n Oos-Afrikafederasie binne die kortste moontlike tyd tot stand te bring. In die Gemeenskap se stigtingsooreenkoms is gekonstateer dat die uiteindelike doelwit die bereiking van 'n politieke federasie is. Dit wil voorkom asof die konsep "die kortste moontlike tyd" gedeeltelik só geïnterpreteer is dat dit na die tydsraamwerk verwys waartydens die huidige politieke leierskap steeds die leisels sou hou. Die studie het egter tot die gevolgtrekking gekom dat die vinnige pas vir die totstandkoming van die politieke federasie een van die moontlike ernstige bedreigings vir die volhoubaarheid en langdurige voortbestaan van die nuwe Oos-Afrikagemeenskap is. Op soortgelyke wyse word lidstate van die Gemeenskap se lidmaatskap van ander streeksreëlings - sonder die bestaan van 'n konkrete formeelooreengekome gesamentlike meganisme om aandag te skenk aan voortspruitende belangekonflikte - as 'n swakheid beskou. Die studie beveel 'n aantal voorwaardes aan wat noodsaaklik is vir die gladde oorgang na 'n politieke federasie wat nie die positiewe vooruitsigte van die Gemeenskap in die gedrang sal bring nie.
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Whang, Patrick. "The collapse of a regional institution : the story of the East African Railways within the East African Community, 1967-1977." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/20619.
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This dissertation examines the deterioration and collapse of the East African Railways Corporation (EARC) during the time of the East African Community (EAC), 1967-1977. The EARC has a long history that stretched back to the beginnings of colonial settlement in the East African region. It survived two world wars and a global economic depression, but just a few years after the independence of East African nations in the early 1960s, the EARC rapidly disintegrated. This then leads to the main project question: What were the causes that contributed to the collapse of the EARC? In order to address this question, I traveled to Nairobi in June 2015 to explore two archival sources: the Kenya National Archives and the Kenya National Railway Museum Archives. Both proved to be an invaluable repository of primary source material. In particular the main documents found were the business records describing the operations of the EARC during the period in question. In addition, with the help of a librarian at the Daily Nation newspaper in Nairobi, I was able to access archived newspaper articles on the EARC dating back to the years of interest. With this data and along with secondary source material, I conducted an analysis that triangulated these sources to provide a holistic picture of the events that affected the EARC. The narrative therefore demonstrates that while many factors contributed to the failure of the EARC what ultimately determined this were the nationalistic tendencies of representatives of EAC member states that overcame any centripetal forces of regional unity. There were also several events that precipitated the downfall of the EARC but ultimately it was the financial crisis of 1974 that proved decisive. This so-called crisis stemmed from a failure of each region to remit funds toward headquarters to be able to continue rail operations. This episode could not be blamed solely on foreign exchange concerns as some scholars have claimed. Instead the crisis exposed the long simmering national divisions that had manifested during this period. Each of the EAC partner states desired equitable treatment. When some perceived that they could not receive this through the operations of regional institutions such as the EARC, they engaged in actions that paralyzed EARC operations. This culminated in the complete fracturing of the EARC by 1977. 3 Since the end of the twentieth century, the EAC has been reborn and even expanded upon to include new member states beyond the original three of Kenya, Uganda and Tanzania. The East African Railways have also risen from the ashes and in late 2013, the initiation of the expansion on the existing rail lines to reinvigorate the railways commenced. But have the lessons of the EARC been learnt to avoid a repeat of the emergence of regional disunity that caused its collapse? It remains to be seen.
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Wolff, Christian. "East African monsoon variability since the last glacial." Phd thesis, Universität Potsdam, 2011. http://opus.kobv.de/ubp/volltexte/2012/5807/.
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The impact of global warming on human water resources is attracting increasing attention. No other region in this world is so strongly affected by changes in water supply than the tropics. Especially in Africa, the availability and access to water is more crucial to existence (basic livelihoods and economic growth) than anywhere else on Earth. In East Africa, rainfall is mainly influenced by the migration of the Inter-Tropical Convergence Zone (ITCZ) and by the El Niño Southern Oscillation (ENSO) with more rain and floods during El Niño and severe droughts during La Niña. The forecasting of East African rainfall in a warming world requires a better understanding of the response of ENSO-driven variability to mean climate.
Unfortunately, existing meteorological data sets are too short or incomplete to establish a precise evaluation of future climate. From Lake Challa near Mount Kilimanjaro, we report records from a laminated lake sediment core spanning the last 25,000 years. Analyzing a monthly cleared sediment trap confirms the annual origin of the laminations and demonstrates that the varve-thicknesses are strongly linked to the duration and strength of the windy season. Given the modern control of seasonal ITCZ location on wind and rain in this region and the inverse relation between the two, thicker varves represent windier and thus drier years. El Niño (La Niña) events are associated with wetter (drier) conditions in east Africa and decreased (increased) surface wind speeds.
Based on this fact, the thickness of the varves can be used as a tool to reconstruct a) annual rainfall b) wind season strength, and c) ENSO variability. Within this thesis, I found evidence for centennialscale changes in ENSO-related rainfall variability during the last three millennia, abrupt changes in variability during the Medieval Climate Anomaly and the Little Ice Age, and an overall reduction in East African rainfall and its variability during the Last Glacial period. Climate model simulations support forward extrapolation from these lake-sediment data, indicating that a future Indian Ocean warming will enhance East Africa’s hydrological cycle and its interannual variability in rainfall. Furthermore, I compared geochemical analyses from the sediment trap samples with a broad range of limnological, meteorological, and geological parameters to characterize the impact of sedimentation processes from the in-situ rocks to the deposited sediments. As a result an excellent calibration for existing μXRF data from Lake Challa over the entire 25,000 year long profile was provided.
The climate development during the last 25,000 years as reconstructed from the Lake Challa sediments is in good agreement with other studies and highlights the complex interactions between long-term orbital forcing, atmosphere, ocean and land surface conditions. My findings help to understand how abrupt climate changes occur and how these changes correlate with climate changes elsewhere on Earth.Änderungen des Klimas in einer sich erwärmenden Erde haben große Auswirkungen auf den globalen und lokalen Wasserhaushalt und rücken anhand starker Extremereignisse immer häufiger in den Fokus der Öffentlichkeit. Besonders die Regionen der Tropen sind von derartigen Einschnitten stark gefährdet. Der jährliche Niederschlag in Ostafrika ist stark mit der saisonalen Wanderung der ITCZ (Innertropischen Konvergenzzone) sowie mit dem El Niño/Southern Oscillation (ENSO) Phänomen verbunden. Extreme Regenfälle und Überschwemmungen während El Niño Jahren stehen Trockenheit und Dürren in La Niña Jahren gegenüber. Prognosen über zukünftige Veränderungen der ostafrikanischen Niederschläge erfordern ein verbessertes Verständnis der ENSO antreibenden Faktoren. Unglücklicherweise sind die vorhandenen meteorologischen Datenreihen nicht lang genug oder besitzen nicht die benötigte Homogenität. Einen hilfreichen Beitrag können jährlich geschichtete Seesedimente des am Fuße des Kilimandscharo gelegenen Lake Challa leisten. Anhand einer monatlich aufgelösten Sedimentfalle konnte ich nachweisen, dass die rund 25.000 Jahre zurückreichenden Sedimente eine jährliche Struktur besitzen sowie die Dicke dieser jährlichen Schichtung (Warve) stark mit der Dauer und Intensität der saisonal windreichen/trockenen Jahreszeit verbunden ist. Dickere Warven repräsentieren windige/trockene Jahre, wohingegen dünnere Warven für windschwache und feuchte Jahre stehen. Stärkere Winde und kaum Niederschläge treten oft im Zusammenhang mit einem La Niña Ereignis in Ostafrika auf, wohingegen während eines El Niño Ereignisses häufig extreme Niederschläge mit wenig Wind zu beobachten sind. Anhand der Vermessung der Warven kann man verschiedene Klimaparameter rekonstruieren: a) den jährlichen Niederschlag b) jährliche Windgeschwindigkeiten und ihre Intensitäten sowie c) ENSO Variabilitäten. Die in meiner Arbeit gewonnenen klimatischen Informationen zeigen starke Änderungen der ENSO Variabilität innerhalb der letzten 3.000 Jahre mit starken Unterschieden während der Kleinen Eiszeit und während der Mittelalterlichen Warmzeit sowie deutlich trockene und windige Bedingungen mit sehr geringen ENSO Aktivitäten im glazialem Zeitraum (18.500 und 21.000 Jahren). Modellberechnungen unterstützen diese Ergebnisse einer Zunahme von Extremereignissen und feuchteren Bedingungen im Zuge einer Erwärmung des Indischen Ozeans. Mittels geochemischer Analysen der Sedimentfallenproben sowie die daraus resultierende Verknüpfung mit limnologischen und meteorologischen Parametern, konnte ich einen entscheidenden Beitrag zur erfolgreichen Interpretation der existierenden 25.000 Jahre langen μXRF Datensätze leisten. Der Anteil an allochthonem und autochthonem Eintrag kann so genau klassifiziert werden. Das dadurch gewonnene Bild der Klimaentwicklung der letzten 25.000 Jahre deckt sich hervorragend mit anderen Studien und ermöglicht Einblicke in das komplexe Zusammenspiel zwischen Ozean-Atmosphäre und Umwelt auf dem afrikanischen Kontinent. Besonders die für die Ostafrikaforschung extrem hohe Auflösung der Daten wird helfen, die abrupten Klimawechsel und Interaktionen besser verstehen zu können.
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Tongue, Jane Anthea. "Seismicity studies in the East African Rift, Kenya." Thesis, University of Leicester, 1991. http://hdl.handle.net/2381/34972.
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An analysis of the microseismicity distribution within Kenya from temporary recording networks shows the activity to be primarily associated with the Kenya Rift and the Nyanza Trough with increased activity in areas of recent volcanic and geothermal activity. A 100km x 80km earthquake recording network was operated for 3 months (Jan-Mar 1990) in the Lake Baringo region of the Kenya Rift Valley. Twenty-nine stations were deployed over a region including the Elgeyo escarpment, the Kerio Valley, the Tugen Hills and the Baringo basin. Eighty local events of ML< 2.0 were located within 50km of the network. These events are situated within the central part of the rift, showing some association with the main rift faults but mainly clustering beneath Lake Baringo at a depth of ~5km and occurring as swarm activity. 90% of the observed activity occurred at depths shallower than 12km indicating that the brittle/ductile transition zone in this area is between 12-16km, which is similar to that in the Lake Bogoria area. Studies of the focal mechanisms of suitable events indicates a WNW-ESE extension direction across the Baringo basin and the presence of subvertical tensional fractures beneath the lake, which are suggested to be caused by the propagation of basic dykes into the crust. The inversion of local P-wave arrival-time data, for the upper crustal velocity structure beneath the Lake Bogoria and Lake Baringo areas, identified velocity lows associated with geothermal areas, a velocity high beneath the Goituimet basaltic lavas and a 10% velocity contrast across the Bogoria-Emsos-Legisianana fault. A model for the lithospheric structure beneath the Baringo basin is proposed with partial melt in the upper mantle beneath the rift, a dyke intruded lower crust with localised intrusions into the mid-upper crust in areas of geothermal and volcanic activity.
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Steyn, G. "The Lamu house - an East African architectural enigma." South African Journal of Art History, 2003. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000884.
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Lamu is a living town off the Kenya coast. It was recently nominated to the World Heritage List. The town has
been relatively undisturbed by colonization and modernization. This study reports on the early Swahili dwelling,
which is still a functioning type in Lamu. It commences with a brief historical perspective of Lamu in its Swahili
and East African coastal setting. It compares descriptions of the Lamu house, as found in literature, with
personal observations and field surveys, including a short description of construction methods. The study offers
observations on conservation and the current state of the Lamu house. It is concluded with a comparison between
Lamu and Stone Town, Zanzibar, in terms of house types and settlement patterns. We found that the Lamu house
is the stage for Swahili ritual and that the ancient and climatically uncomfortable plan form has been retained for
nearly a millennium because of its symbolic value.
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Zuze, Tia Linda. "Equity and effectiveness in East African primary schools." Doctoral thesis, University of Cape Town, 2008. http://hdl.handle.net/11427/5671.
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Researchers and policy makers agree that studying the relationship between school qualityand academic achievement will benefit public investment in education. An important turningpoint in educational delivery in Africa came during the 1990 World Conference on Educationfor All where renewed commitments to quality basic education were made. Against thisbackground, interest in how African education systems are progressing has increased. Thisthesis contributes to this understanding in three important ways. The first and broadestobjective is to assess the role of comparative studies in setting educational standards. Thesecond relates to how schools within three East African education systems can contribute tothe academic success of students whatever their background. The third is to investigate whichschools most effectively ensure a meaningful educational experience for children who faceeconomic and social hardships. Data are sourced from the second wave of a cross-nationalsurvey of schools in Southern and Eastern Africa. Hierarchical Linear Modelling is used toanalyse data on schools and students in Kenya, Tanzania and Uganda.The results demonstrate that, although valuable for establishing general patterns of effects,comparative studies should be followed by further investigation of the salient issues at workwithin individual countries. Contrary to earlier studies in developing countries, anunambiguous positive relationship between socioeconomic status and student performancewas evident across this region. Compositional, structural and organisational characteristics ofEast African primary schools were found to be related to academic achievement. Academicallysupportive relationships between students and household members benefited studentperformance in Kenya and Tanzania. In line with the school effectiveness theory, resourceavailability proved to be consistently related to educational quality and its equitable distributionin Uganda. An important finding relating to gender was that characteristics of schools thatimproved quality did so more effectively for boys than for girls and therefore increased themale academic advantage. The implication is that the climate for learning in East Africanprimary schools is better suited to educating boys.The study recommends that future surveys pay closer attention to how student attitudes tolearning are shaped so that schools can play a more effective role in motivating students. Totease out exactly how the educational environment influences learning, it is also recommendedthat more longitudinal studies be pursued by the educational research community. That thepace of educational reform is often painfully slow makes the use of longitudinal data to track itscourse all the more necessary.
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Gamoyo, Majambo Jarumani. "Rainfall variability characteristics over the East African coast." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/10571.
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Includes bibliographical references.This study explores inter-annual rainfall variability over the East African coast region (Kenya and Tanzania) for the period 1980-2010 and focuses on dry and wet spell characteristics during the two rainy seasons. The atmospheric and ocean conditions associated with the rainfall variability are also considered. Extreme occurrences of rainfall variable can result in droughts and floods which in turn may lead to socioeconomic disruptions. East Africa is highly dependent and vulnerable to the amounts and timing of rainfall.
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Magara, Cindy Evelyn. "Contemporary East African Cinema: Emergent Themes and Aesthetics." Thesis, University of Sydney, 2020. https://hdl.handle.net/2123/24115.
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At the turn of the 21st Century, a dynamic and eclectic cinema that had been slowly developing in the East African region gain traction. Yet, the nascent cinematic imaginaries of East Africa have received the least scholarly attention of all the regional cinemas of the African continent. The study explores emergent themes and aesthetics of East African Cinema by locating East African cinema in contemporary African cinema criticism, particularly its indigenous concepts, epistemes and approaches to film analysis. By conceptualising eclectic national cinemas into a complex homogenous entity, I argue that the various national cinemas of East Africa are best understood as a single regional, transnational cinema (at least within East Africa), given the shared socio-political, economic and cultural experiences, and this homogeneity manifests in the representation of parallel themes and aesthetics. I also posit that East African cinema is not a closed static cinema, however, because its aesthetics are influenced by other continental and international cinemas such as Nollywood, Bollywood, Hollywood and European cinema. Despite these influences, the narratives of East African cinema continue to be centrally organised in terms of African oral storytelling aesthetics. To explore the emergent themes and aesthetics in East African cinema, this study employs a range of disciplinary research methods. By combining close textual analysis with interviews with significant East African filmmakers, this thesis examines how the East African filmmakers partake of their presumed role of modern griots to reflect and shape popular discourses. Such discourses include the representation of history in the post-colonial era, power struggles concerning gender, class conflict, and migration to the Western world, all of which are recurrent themes in films across the region.
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Briggs, Brendon. "East African stories of love: Challenging cultural perceptions." Thesis, Briggs, Brendon (2019) East African stories of love: Challenging cultural perceptions. PhD thesis, Murdoch University, 2019. https://researchrepository.murdoch.edu.au/id/eprint/56085/.
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In recent decades a call for ‘outsiders’ to cease the dominant practice of perpetuating negative stereotypes of Africa and African people has continued to grow (Achebe 1977; Adichie 2009; Asante 1988; Diop 1974; Mudimbe 1988; Mwenda 2007; Wainaina 2008). The demand is in response to the homogenising of the fifty-four African nations and their complex sociocultural relationships into a sustained colonial perception of ‘Otherness’. This creative arts PhD attempts to answer that call by challenging non-African normative expectations of Africa and Africans. It employs processes of participatory autoethnography (Conquergood 1985) that integrate autobiographical and fictional storytelling to create four ‘stories of love’ with the diverse collaboration of eight East African participants in Tanzania and Zanzibar. The research is structured to achieve its creative praxis goals through the ‘observer and observed’ experience (Robson and McCartan 2016), utilising individual and collaborative ‘workshops’ with participants whose fictional characterisations were fully informed by their personal experiences with the subject of love – and most specifically those of ‘romantic love’ (Singer 2009; Solomon 2006). The resulting creative output, complementing the exegetical approach of the thesis, is a literary work (prose treatment) that reveals complex, multidimensional characters who portray nuanced and universal experiences of love. Throughout the dissertation attention is directed towards the rights and experiences of the human subjects as creative participants. Hence, this self-consciously, outsider-generated project undertakes an exegetical examination of the creative experiences informing the participatory storytelling model, its application of important methodologies (Pitts and Miller-Day 2007; Way, Zwier, and Tracy 2015) and the subsequent character and story evolution.
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Orr, Rodney H. "African American missionaries to East Africa, 1900-1926 : a study in the ethnic reconnection of the Gospel." Thesis, University of Edinburgh, 1998. http://hdl.handle.net/1842/26827.
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The purpose of this research is to evaluate the impact African American missionaries had on the ethnic reconnection between African Americans and East Africans. Their role in the evangelization of Africa has long been overlooked by historians and this research seeks to correct this disparity. Well before the end of slavery in the USA there was a desire among African Americans to send missionaries to Africa. Approximately 600 of these missionaries went to Africa between 1820 and 1980. Seventy-five percent went to West Africa, 50% went to Liberia alone. The remaining 25% went to South, Central and East Africa. The missionaries who went to East Africa (i.e. Kenya, Uganda, Tanzania, Malawi and Eastern Zambia) are the focus of this research. This research begins with a historical overview of African American missions. George Liele was the first documented African American missionary from the USA. Liele went to Jamaica from Savannah, Georgia in 1783. Lott Carey, who went to Liberia in 1821, was the first African American Baptist missionary to Africa. The purpose of this overview is to give the reader a context from which to comprehend the subsequent chapters. The next three chapters represent the major body of this research. They identify the key factors that motivated African American missionaries to go to East Africa. Factors such as calling from God, race, African identity and education are evaluated. The preparatory training of these missionaries is evaluated as is the external influences of Brooker T. Washington and J.J. Coles. The similarities in ancestry, race and some cultural expressions of music are contrasted with differences in education and views of western culture. African perceptions of these missionaries are evaluated along with the perceptions of western missionaries and colonial officials. A discussion of their attitudes towards Islam and African traditional religions is included as is an evaluation of the reasons why they returned to the USA. The changes these missionaries experienced in their cultural understanding of East Africa influenced their understanding of African identity, the gospel and their desire to return to Africa. Their readjustments to American culture are evaluated along with how they maintained their connection with East Africa through letters, literature, fund-raising, and helping Africans come to the USA for education.
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Cheserem, Salina Jepkoech. "African responses to colonial military recruitment : the role of Askari and carriers in the first World War in the British East Africa Protectorate (Kenya)." Thesis, McGill University, 1987. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=66074.
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Udah, Hyacinth Ikechukwu. "Understanding the Experience of African Immigrants in South East Queensland." Thesis, Griffith University, 2016. http://hdl.handle.net/10072/365737.
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This thesis attempts to describe the experiences of adult African immigrants in South East Queensland, who, as a relatively recent and growing immigrant group in Australia, have not been the subject of significant research attention. The empirical study explores their lived experiences by focusing in particular on the role of racialised ‘black skin’ identity constructions in their migration and settlement experiences. Specifically, the study examines the mediating effects of race and skin colour, and how differences in ‘race’ and ‘racialised’ identity constructions interact to impact their experiences as visible immigrants in Australia. The central research question asks how African immigrants define their identity, personal and socioeconomic well-being in white majority Australia. The study examines also these related sub-questions: How do African immigrants describe the impacts of racialised black skin colour on their everyday lives in Australia? What does living in a black body mean for African immigrants in Australia?Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
School of Humanities, Languages and Social Science
Arts, Education and Law
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Kinya, Mbaya Caroline. "Essays on microfinance in east-Africa." Doctoral thesis, Universitat Autònoma de Barcelona, 2017. http://hdl.handle.net/10803/405660.
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Microfinance has found itself at the center of development agenda for many a developing economy struggling to reduce poverty and spur economic growth by containing unemployment. This is based on the assumption that if marginalized people can access cheap loans, they could easily create micro enterprises and lift themselves out of poverty. This thesis investigates the effect of microfinance as a mode of financial inclusion in the East-African economy. Using 2 essays, we pose various research questions to achieve our overall objective 1) what are the themes arising from two decades of research in each of the three countries and what are the gaps in literature from the region? 2) How do existing modes of financial inclusion in East-Africa affect microfinance? Is microfinance necessary in light of on-going over indebtedness crisis? 3) How has microfinance helped marginalized individuals such poor women create sustainable enterprises? The study is modeled on human and social capital theories and will employ the use regressions to test the hypotheses and make recommendations.
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Waweru, Simon N. "Regionalisms in East Africa, a reappraisal." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24995.pdf.
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Myers, Evan T. "Structural bamboo design in east Africa." Kansas State University, 2013. http://hdl.handle.net/2097/16799.
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Master of ScienceDepartment of Architectural Engineering and Construction Science
Kimberly Waggle Kramer
This document addresses East Africa's need for safe, sustainable, and affordable housing and promotes use of bamboo as a structural material by providing adequate information and resources to evaluate the strength of bamboo. East African housing is a leading issue for the region because of the population growth, specifically in urban areas where housing resources and infrastructure cannot match the population growth. The solution may be bamboo housing as an alternative to urban slums. The bamboo species Oxytenanthera abyssinica is available throughout East Africa region and has been accepted and implemented in traditional housing throughout the region. This document references the resources provided by the International Code Council (ICC), International Organization for Standardizations (ISO), and International Network for Bamboo and Rattan (INBAR) for the use of bamboo as a structural material in buildings. This paper also discusses the mechanical strength of bamboo, and the structural behavior of bamboo in buildings. In addition, bamboo construction shows the tools, connections, and preservatives used in the field. The design example, using Oxytenanthera abyssinica, provides the traditional layout and materials for an Amhara house, and calculations show the practicality of bamboo in structural design. This document has led to recommendations for engineers and the bamboo industry, including the development of a codebook for bamboo design, promoting bamboo farms and plantations, creating a uniform connection, and increasing bamboo's service life. From research, bamboo is in need of further development before being considered a viable structural material to provide for commercial use but would suffice for the housing shortage in East Africa.
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James, Anthony Peter. "Viruses of banana in East Africa." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/51288/1/Anthony_James_Thesis.pdf.
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Bananas are one of the world's most important food crops, providing sustenance and income for millions of people in developing countries and supporting large export industries. Viruses are considered major constraints to banana production, germplasm multiplication and exchange, and to genetic improvement of banana through traditional breeding. In Africa, the two most important virus diseases are bunchy top, caused by Banana bunchy top virus (BBTV), and banana streak disease, caused by Banana streak virus (BSV). BBTV is a serious production constraint in a number of countries within/bordering East Africa, such as Burundi, Democratic Republic of Congo, Malawi, Mozambique, Rwanda and Zambia, but is not present in Kenya, Tanzania and Uganda. Additionally, epidemics of banana streak disease are occurring in Kenya and Uganda.
The rapidly growing tissue culture (TC) industry within East Africa, aiming to provide planting material to banana farmers, has stimulated discussion about the need for virus indexing to certify planting material as virus-free. Diagnostic methods for BBTV and BSV have been reported and, for BBTV, PCR-based assays are reliable and relatively straightforward. However for BSV, high levels of serological and genetic variability and the presence of endogenous virus sequences within the banana genome complicate diagnosis. Uganda has been shown to contain the greatest diversity in BSV isolates found anywhere in the world. A broad-spectrum diagnostic test for BSV detection, which can discriminate between endogenous and episomal BSV sequences, is a priority. This PhD project aimed to establish diagnostic methods for banana viruses, with a particular focus on the development of novel methods for BSV detection, and to use these diagnostic methods for the detection and characterisation of banana viruses in East Africa.
A novel rolling-circle amplification (RCA) method was developed for the detection of BSV. Using samples of Banana streak MY virus (BSMYV) and Banana streak OL virus (BSOLV) from Australia, this method was shown to distinguish between endogenous and episomal BSV sequences in banana plants. The RCA assay was used to screen a collection of 56 banana samples from south-west Uganda for BSV. RCA detected at least five distinct BSV isolates in these samples, including BSOLV and Banana streak GF virus (BSGFV) as well as three BSV isolates (Banana streak Uganda-I, -L and -M virus) for which only partial sequences had been previously reported. These latter three BSV had only been detected using immuno-capture (IC)-PCR and thus were possible endogenous sequences. In addition to its ability to detect BSV, the RCA protocol was also demonstrated to detect other viruses within the family Caulimoviridae, including Sugar cane bacilliform virus, and Cauliflower mosaic virus.
Using the novel RCA method, three distinct BSV isolates from both Kenya and Uganda were identified and characterised. The complete genome of these isolates was sequenced and annotated. All six isolates were shown to have a characteristic badnavirus genome organisation with three open reading frames (ORFs) and the large polyprotein encoded by ORF 3 was shown to contain conserved amino acid motifs for movement, aspartic protease, reverse transcriptase and ribonuclease H activities. As well, several sequences important for expression and replication of the virus genome were identified including the conserved tRNAmet primer binding site present in the intergenic region of all badnaviruses. Based on the International Committee on Taxonomy of Viruses (ICTV) guidelines for species demarcation in the genus Badnavirus, these six isolates were proposed as distinct species, and named Banana streak UA virus (BSUAV), Banana streak UI virus (BSUIV), Banana streak UL virus (BSULV), Banana streak UM virus (BSUMV), Banana streak CA virus (BSCAV) and Banana streak IM virus (BSIMV). Using PCR with species-specific primers designed to each isolate, a genotypically diverse collection of 12 virus-free banana cultivars were tested for the presence of endogenous sequences. For five of the BSV no amplification was observed in any cultivar tested, while for BSIMV, four positive samples were identified in cultivars with a B-genome component.
During field visits to Kenya, Tanzania and Uganda, 143 samples were collected and assayed for BSV. PCR using nine sets of species-specific primers, and RCA, were compared for BSV detection. For five BSV species with no known endogenous counterpart (namely BSCAV, BSUAV, BSUIV, BSULV and BSUMV), PCR was used to detect 30 infections from the 143 samples. Using RCA, 96.4% of these samples were considered positive, with one additional sample detected using RCA which was not positive using PCR. For these five BSV, PCR and RCA were both useful for identifying infected samples, irrespective of the host cultivar genotype (Musa A- or B-genome components). For four additional BSV with known endogenous counterparts in the M. balbisiana genome (BSOLV, BSGFV, BSMYV and BSIMV), PCR was shown to detect 75 infections from the 143 samples. In 30 samples from cultivars with an A-only genome component there was 96.3% agreement between PCR positive samples and detection using RCA, again demonstrating either PCR or RCA are suitable methods for detection. However, in 45 samples from cultivars with some B-genome component, the level of agreement between PCR positive samples and RCA positive samples was 70.5%. This suggests that, in cultivars with some B-genome component, many infections were detected using PCR which were the result of amplification of endogenous sequences. In these latter cases, RCA or another method which discriminates between endogenous and episomal sequences, such as immuno-capture PCR, is needed to diagnose episomal BSV infection.
Field visits were made to Malawi and Rwanda to collect local isolates of BBTV for validation of a PCR-based diagnostic assay. The presence of BBTV in samples of bananas with bunchy top disease was confirmed in 28 out of 39 samples from Malawi and all nine samples collected in Rwanda, using PCR and RCA. For three isolates, one from Malawi and two from Rwanda, the complete nucleotide sequences were determined and shown to have a similar genome organisation to previously published BBTV isolates. The two isolates from Rwanda had at least 98.1% nucleotide sequence identity between each of the six DNA components, while the similarity between isolates from Rwanda and Malawi was between 96.2% and 99.4% depending on the DNA component. At the amino acid level, similarities in the putative proteins encoded by DNA-R, -S, -M, - C and -N were found to range between 98.8% to 100%. In a phylogenetic analysis, the three East African isolates clustered together within the South Pacific subgroup of BBTV isolates. Nucleotide sequence comparison to isolates of BBTV from outside Africa identified India as the possible origin of East African isolates of BBTV.
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Gouws, Jeanine. "An analysis of current East African higher education systems and institutions." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/785.
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Higher education (HE) institutions play a vital role in the generation of new knowledge in the 21st Century, as HE is recognised as a key force for modernisation and development. The development and advancement of information technology have led to an interconnected, borderless world of knowledge, and HE institutions have become part of what is known as the global HE network society. HE institutions in developed countries are the most actively involved in producing and disseminating knowledge, and compete with one another in adding to this world stock of knowledge. In addition, HE has become a national priority in developed countries, and governments place pressure on HE institutions to form part of and remain active in the global HE network society in order to contribute to the knowledge-centred economy of today. However, the developing world lags far behind in becoming part of the global HE network society. As long as the developing world face constraints in attempts to improve national economies, alleviate poverty and maintain sustainability, prospects of contributing to, and participating in the global HE network society seem unlikely. HE can be used as a tool in addressing national development needs. With the necessary support and recognition from governments, HE should play a vital role in the process of reform and the revitalisation of developing countries. Africa is the least developed in terms of HE institutions. Approximately 300 institutions fit the definition of a university across the continent. While some countries on the continent, especially in Southern and Northern Africa, can claim comprehensive academic systems, most have just a few academic institutions and some countries have not yet even established differentiated post-secondary systems. It is generally assumed that most countries south of the Sahara lack adequate HE systems, or that they have no HE systems at all. Very little information on African HE systems and institutions, and how they function, is available, and there is a need for a deeper investigation into African HE systems and institutions. The vastness and diversity of the African continent does not allow for a single study of all African countries and their HE systems and institutions. It is for this reason that East Africa, comprising Kenya, Uganda and Tanzania, was chosen for this study. This specific region exhibits common characteristics amongst its countries. A British colonial history, similar secondary schooling systems and a predominance of the English language, set East Africa apart from the rest of the African continent. East African HE functions on a regional, national, and institutional level, and their way of functioning is interdependent.
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Rosenberg, Aaron Louis. "Tegeni masikio: composing East African realities through young eyes." Universitätsbibliothek Leipzig, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-107414.
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At times creative writing has been employed by Tanzanians in order to demonstrate the progress of African peoples and to reflect the changes, or lack of them, in this society. Popular songs are another continually vibrant medium of intellectual exchange which appeals to various sectors of the Tanzanian populace. Such oral and written works, directed as they are to local and intra-national audiences, are most often created in the Swahili language. The relatively young age of Tanzania’s population, with nearly 65 percent of the population under 25 years of age has brought about a situation in which this young and dynamic population is increasingly seeing their voice and interests represented in literary and aural/oral works. What are the themes and strategies utilized by such songwriters and literary artists and what are their trajectories of dissemination, consumption and activation within Tanzanian social contexts?
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Terblanche, Elizabeth Deborah. "Modelling narrativity in East African English / Elizabeth D. Terblanche." Thesis, North-West University, 2011. http://hdl.handle.net/10394/7173.
Full textAbstract:
Narratives are the product of a basic human tendency to make sense of real or imagined experiences. The research question posed in the dissertation is: how is narrativity encoded in East African English? Can the narrativity model in the dissertation distinguish between registers that prototypically focus on narration versus registers that do not primarily focus on narration? The narrativity model consists of four main groups of features, namely Agency, Causation, Contextualisation and Evaluation. These groups are representative of the fundamental structure of narratives: things happen to people at a specific time and place. Agency concerns the people who either instigate or are affected by the events. The things that happen can be denoted by Causation when they are the result of cause and effect in the world. Contextualisation refers to the grounding of events in time and space. Lastly, Evaluation concerns the reactions and attitudes people have towards the events. Eighteen linguistic features such as third person pronouns (part of the Agency group) and past tense verbs (part of the Contextualisation group) were analysed as micro-level indicators of narrativity. The corpus-based investigation analysed the linguistic features used to encode narrativity across 22 spoken and written registers of the East African component of the International Corpus of English (ICE-EA) using WordSmith Tools 4.0. The raw scores for each feature were standardised across all registers to enable comparisons between features, as well as between registers. The results indicate that narrativity is a gradient phenomenon that occurs across a variety of East African English spoken and written registers. After the initial analyses were done, the narrativity model was revised to include only 11 core narrativity features. These features are past tense verbs, third person pronouns, proper nouns for persons, activity verbs, time and place adverbials, perfect aspect, emotional stance verb feel, first person pronouns, evaluative adjectives and non-finite causative clauses. ICE-EA registers that focus on narration as a MEANS to make sense of experiences (the objective or END) are Fiction, Social letters, Oral narratives, Face-to-face conversation and Legal cross-examination. In other words, the core narrativity features are the MEANS and the END is to make sense of experiences and facilitate understanding using narration. Twelve registers have an intermediate focus on narrativity. Narration is a secondary or simultaneous objective in these registers alongside primary objectives such as scientific exposition, persuasiveness, information presentation or interpersonal interaction. There are five registers with low scores for the core narrativity features: Student writing, Business letters, Popular writing, Academic writing and Instructional writing. These registers do not primarily focus on narration and have other primary and even secondary objectives such as scientific exposition and persuasiveness. The narrativity model sheds light on the way narrativity is encoded using linguistic features and gives insight into East African English register variationThesis (M.A. (English))--North-West University, Vaal Triangle Campus, 2011
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Tyers, Alexandra Morton. "Divergence and speciation of East African haplochromine cichlid fish." Thesis, Bangor University, 2013. https://research.bangor.ac.uk/portal/en/theses/divergence-and-speciation-of-east-african-haplochromine-cichlid-fish(35db9b7b-0775-4cd5-94f3-556a6f3cacd6).html.
Full textAbstract:
In the Great Lakes of the East African Rift Valley, cichlid fishes have diversified into hundreds of species with great variety of ecomorphological, secondary sexual and behavioural characteristics. A strong role for sexual selection in their speciation is indicated by the presence of many closely related ecologically similar sympatric species which differ in male secondary sexual characteristics. A review of previous research finds that reproductive isolation by direct mate choice may be a common isolating barrier among sympatric species. Observations of partial assortative mating among divergent geographic populations have lead to theories of intralacustrine allopatric speciation of habitat specialists by divergence of signal traits involved in conspecific recognition. Here I demonstrate that signal and preference divergence among populations is not limited to patchily distributed lacustrine endemics, but can also occur in the widely distributed riverine generalist lineage that is phylogenetically basal to the large lacustrine radiations, suggesting a role for divergence of secondary sexual traits in allopatry throughout adaptive radiation. This thesis also adds to the evidence for ecological divergence and peripatric speciation of lacustrine habitat specialists in the absence of significant colour differentiation. In simulated intruder choice tests, males tend to bias aggression towards males of their own species or populations, which may aid in the co-existence of allopatrically diverged populations under secondary sympatry and help to facilitate speciation, or even drive divergence of male traits that are involved in signalling during both courtship and territorial interactions. Results from preliminary investigations into individual variation in mate preference suggest that partial assortative mating among allopatric populations may be due to variation within, rather than among, individuals in their choice of mate. Within-individual variation may be unlikely to cause divergence, but has the potential to aid in colonisation of new areas by a relaxation of directional selection allowing for divergence of male traits by environmental or other social selection pressures. To draw any firm conclusions about the impact of variation in mate choice on speciation, much more data from a wider variety of lineages is needed. Mate choice experiments, carried out as part of a larger ongoing project into sympatric divergence of haplochromine cichlids in isolated crater lakes, found little consistency of female mate choice despite morphological and genetic differentiation of forms. This indicates that, in contrast to previously tested sympatric species of cichHds, at the beginnings of adaptive radiation variety may not be maintained solely through reproductive isolation by direct mate choice. Observations of interactions among animals may frequently reveal unexpected results with regards to what is and is not a species - for example, strong assortative mating among phenotypically similar allopatric populations and that assortative mating alone may not maintain diversity in sympatric populations. Behavioural experiments can complement more modern genetic and genomic techniques and therefore continue to be a valuable tool in the study of speciation and the mechanisms involved in divergence and the maintenance of diversity.
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Ford, A. G. P. "Evolutionary relationships of East African soda lake cichlid fish." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1471875/.
Full textAbstract:
This thesis examines the evolutionary relationships of the Alcolapia soda lake cichlid fishes of East Africa. The introduction presents background on the soda lakes in which the cichlids are found, the taxonomy and biology of the fishes, as well as the theoretical background to the study. Chapter two discusses the methods used in the thesis, addressing the benefits and limitations of each, as well as their suitability to the study in hand. Chapter three investigates the phylogenetics and phylogeography of soda lake cichlids sampled at several populations around the soda lakes and a single transplanted population outside of the focal lakes, employing a large genomic dataset generated through restriction site associated DNA (RAD) sequencing, and demonstrates low levels of interspecific genomic differentiation with high levels of ongoing gene flow. Chapter four uses the RAD dataset to test for signals of selection between Alcolapia species, employing genome-wide scans and outlier detection to characterise peaks of genomic divergence between species. Chapter five combines morphological (geometric morphometrics) and ecological (stable isotope, stomach contents) data with the RAD dataset from chapter three to consider biologically relevant diversification between Alcolapia species, testing for convergence and niche adaptation. Chapter six examines the ecomorphology of the soda lake fishes at an intraspecific level, testing for effects of geography and environment on morphological differentiation between populations. Finally, chapter seven draws together the conclusions inferred from the thesis, and discusses possible future directions for research in this system.